Microleakage Sealing Tester is suitable for package sealing test. The instrument adopts vacuum / pressure attenuation test principle and non-destructive testing technology. It meets ASTM and National test standard and method. High precision CCIT testing technology can detect the leakage of micro holes. It can be used to verify the sealing integrity of large and small volume injection and lyophilized products such as vials bottle, ampoule bottle, infusion bottle, precharge needle and eye drops bottle. It is widely used by pharmaceutical manufacturers, third-party testing institutions and drug testing institutions.
Sealing test method:
Comparison of common sealing test methods for vial bottles:
Negative pressure method
Positive pressure method
Vacuum attenuation method
Operate
Put the sample into water, after vacuumizing, judge whether it is leaking by whether there are bubbles on the test object or whether water enters the test object after vacuum reduction
Punch a hole on the object to be measured, flush gas into it, and put it into water. Observe whether there is a dew point by observing whether there are bubbles emerging during the pressure maintaining process.
Put the sample into the standard test chamber, and observe the coincidence of the pressure curves of the sample and the standard sample after vacuumizing, so as to judge whether there is leakage or not
Advantage
1. The results show that
2. Widely used
3. High industry acceptance
1. The results show that
2. Widely used
1. convenient and fast
2. traceability
3. Repeatable
4.Nondestructive testing
5. The human factor is small
6.High sensitivity
7.Quantitative test
8. Easier to detect smaller leakage point and Irregular leak
Shortcoming
1.Destructive testing
2.Subjective factors, easy to misjudge
3.The sensitivity is low and it is difficult to judge micropore
1. Destructive testing
2. Long time use to test
3. Cann’t Judgment of micropore leakage
High cost of instruments
Summary
Negative pressure method is a commonly used method to test the sealing performance. According to the research, although water molecules can pass through the 5um leak, it will be found in the actual detection that if the 5um leak is encountered, it is difficult for personnel to observe the penetration of liquid, resulting in misjudgment. And after this sealing test, the sample can not be used again.
Each sample for destructive test can only be used for preliminary research, not suitable for product delivery inspection
At present, the method is most effective, intuitive and efficient leak detection method. And the sample will not be polluted after inspection, and can be used normally.
Test principle of vacuum attenuation method
According to ASTM F2338 vacuum attenuation sealing test standard requirements, based on vacuum sensing technology. Connect the micro leakage tester host to a test chamber specially designed to accommodate the object to be tested. The instrument vacuumizes the test chamber, and the pressure difference is formed inside and outside the package. Under the effect of pressure, the gas in the package diffuses into the test chamber through the leakage hole. The vacuum sensor technology detects the change relationship between time and pressure, and compares it with the standard value (established mathematical model), so as to judge whether the sample leaks.
Technical characteristics of the instrument
1. The corresponding test chamber can be selected for different test samples, which can be easily replaced by users. In the case of meeting more kinds of samples, the cost of users can be reduced as much as possible, so that the instrument has better detection adaptability.
2. It is suitable for the detection of small leakage and the identification of large leakage samples, and gives the judgment of qualified and unqualified.
3. Non destructive testing method is used to detect the leakage of the package containing drugs. After testing, the samples are not damaged, and the normal use is not affected, and the testing cost is low.
4. The test results are not subjective judgment, and the test process of each sample is completed in about 50s, without manual participation, so as to ensure the accuracy and objectivity of the data.
5. Using brand vacuum components, stable performance, durable
6. It has full password protection function, which is divided into four levels of authority management. Each operator has a unique login name and password combination to enter the instrument operation.
7. The instrument is equipped with R232 serial port, which supports data LAN transmission, and has ISP online upgrade function to meet customers' personalized requirements.
8. With link DSM test system, the original data can be backed up on the computer in a way that cannot be changed, and can be exported to PDF format.
Your message must be between 20-3,000 characters!
English
